Originally Posted by Hammergun
I've glued cracks like this and I like to inlet a piece of ash or hickory under the guard and I glue it with West System epoxy. It's probably overkill but then I don't have to worry about failure.

+1

In repairing cracks like we are discussing "overkill" is a good concept. In my experience, the first attempt at the repair is your best shot at getting a cosmetically acceptable & permanent repair. If the crack returns after repair by simply putting adhesive in the crack it is much more difficult to achieve this. It never hurts to add some reinforcement if you can do it w/o it showing.